Doubling up

Stephen Cousins

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Doubling up

机译：加倍

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The shipping industry's drive towards larger container ships able to carry greater volumes is placing increasing pressure on managers of terminals to push more boxes, in the same amount of time, through already tightly packed berths and container yards. One method of unloading vessels faster is to increase cycle speed, but this raises significant challenges in terms of reducing crane sway and preventing driver control issues related to concentration and fatigue. Another approach is to boost productivity through the deployment of multi-lift spreaders, such as tandem lifts, able to shift more boxes in a similar amount of time. Studies indicate that, when configured optimally, these systems can improve productivity by as much as 40% per ship-to-shore crane compared with a conventional single-lift set up.

机译：航运业朝着能够运载更大集装箱的大型集装箱船的方向发展，对码头管理者施加越来越大的压力，要求他们在原本紧迫的泊位和集装箱堆场中，在相同的时间内推更多的箱子。更快卸船的一种方法是提高循环速度，但这在减少起重机摇摆和防止驾驶员集中注意力和疲劳问题方面提出了重大挑战。另一种方法是通过部署多式吊具（例如串联式吊具）来提高生产率，这些吊具能够在相似的时间内移动更多的箱子。研究表明，与传统的单举升设备相比，如果以最佳配置进行配置，这些系统每台岸上起重机可以将生产率提高多达40％。

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《Ports & harbors》 |2013年第3期|28-29|共2页
作者
Stephen Cousins;
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